Had some tranny work done and now the power mirrors dont work. Shop said they didnt do it and the control module is bad. Took it apart...what should I be seeing? The L/R rocker has a metal post that comes down to 4 posts on the board. Shouldnt the posts have metal running between them for the L/R post to contact? The module looks like it may have been messed with but no "loose parts" inside.